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Square root and cube root

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  1. if √x/169 = 18/13, then x is equal to
    1. 108
    2. 324
    3. 2916
    4. 4800
    5. None of the above
Correct Option: B

Given, √x/169 = 18/13
On squaring both sides, we get
x/169 = 18/13 x 18/13
∴ x = 18 x 18 x 169/13 x 13
x = 18 x 18 = 324


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